// DiffSquares.java:  calculate the difference of two squares 

class DiffSquares {
  static int diffSquares(int a, int b) {
      int sum;
      int diff;
      sum = a + b;
      diff = a - b;
      return sum * diff;
  }
  public static void main(String[] args) {
      int x = Integer.parseInt(args[0]);
      int y = Integer.parseInt(args[1]);
      System.out.print("The difference of squares is: ");
      System.out.println(diffSquares(x,y));
  }
}